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bcachefs: Inlining improvements

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- Don't call into bch2_encrypt_bio() when we're not encrypting
 - Pull slowpath out of trans_lock_write()
 - Make sure bc2h_trans_journal_res_get() gets inlined.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2022-11-01 03:37:53 -04:00
parent 182c7bbfbf
commit 0cc455b3ca
4 changed files with 29 additions and 19 deletions
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3
fs/bcachefs/btree_iter.c
View file

@ -1160,7 +1160,7 @@ int __must_check bch2_btree_path_traverse(struct btree_trans *trans,
btree_path_traverse_one(trans, path, flags, _RET_IP_);
}
static void btree_path_copy(struct btree_trans *trans, struct btree_path *dst,
static inline void btree_path_copy(struct btree_trans *trans, struct btree_path *dst,
struct btree_path *src)
{
unsigned i, offset = offsetof(struct btree_path, pos);
@ -1189,6 +1189,7 @@ static struct btree_path *btree_path_clone(struct btree_trans *trans, struct btr
return new;
}
__flatten
struct btree_path *__bch2_btree_path_make_mut(struct btree_trans *trans,
struct btree_path *path, bool intent)
{

31
fs/bcachefs/btree_update_leaf.c
View file

@ -291,7 +291,7 @@ bch2_trans_journal_preres_get_cold(struct btree_trans *trans, unsigned u64s,
return 0;
}
static inline int bch2_trans_journal_res_get(struct btree_trans *trans,
static __always_inline int bch2_trans_journal_res_get(struct btree_trans *trans,
unsigned flags)
{
struct bch_fs *c = trans->c;
@ -729,33 +729,34 @@ bch2_trans_commit_write_locked(struct btree_trans *trans,
return ret;
}
static noinline int trans_lock_write_fail(struct btree_trans *trans, struct btree_insert_entry *i)
{
while (--i >= trans->updates) {
if (same_leaf_as_prev(trans, i))
continue;
bch2_btree_node_unlock_write(trans, i->path, insert_l(i)->b);
}
trace_and_count(trans->c, trans_restart_would_deadlock_write, trans);
return btree_trans_restart(trans, BCH_ERR_transaction_restart_would_deadlock_write);
}
static inline int trans_lock_write(struct btree_trans *trans)
{
struct btree_insert_entry *i;
int ret;
trans_for_each_update(trans, i) {
if (same_leaf_as_prev(trans, i))
continue;
ret = bch2_btree_node_lock_write(trans, i->path, &insert_l(i)->b->c);
if (ret)
goto fail;
if (bch2_btree_node_lock_write(trans, i->path, &insert_l(i)->b->c))
return trans_lock_write_fail(trans, i);
bch2_btree_node_prep_for_write(trans, i->path, insert_l(i)->b);
}
return 0;
fail:
while (--i >= trans->updates) {
if (same_leaf_as_prev(trans, i))
continue;
bch2_btree_node_unlock_write_inlined(trans, i->path, insert_l(i)->b);
}
trace_and_count(trans->c, trans_restart_would_deadlock_write, trans);
return btree_trans_restart(trans, BCH_ERR_transaction_restart_would_deadlock_write);
}
static noinline void bch2_drop_overwrites_from_journal(struct btree_trans *trans)

2
fs/bcachefs/checksum.c
View file

@ -316,7 +316,7 @@ struct bch_csum bch2_checksum_bio(struct bch_fs *c, unsigned type,
return __bch2_checksum_bio(c, type, nonce, bio, &iter);
}
int bch2_encrypt_bio(struct bch_fs *c, unsigned type,
int __bch2_encrypt_bio(struct bch_fs *c, unsigned type,
struct nonce nonce, struct bio *bio)
{
struct bio_vec bv;

12
fs/bcachefs/checksum.h
View file

@ -61,8 +61,16 @@ int bch2_rechecksum_bio(struct bch_fs *, struct bio *, struct bversion,
struct bch_extent_crc_unpacked *,
unsigned, unsigned, unsigned);
int bch2_encrypt_bio(struct bch_fs *, unsigned,
struct nonce, struct bio *);
int __bch2_encrypt_bio(struct bch_fs *, unsigned,
struct nonce, struct bio *);
static inline int bch2_encrypt_bio(struct bch_fs *c, unsigned type,
struct nonce nonce, struct bio *bio)
{
return bch2_csum_type_is_encryption(type)
? __bch2_encrypt_bio(c, type, nonce, bio)
: 0;
}
int bch2_decrypt_sb_key(struct bch_fs *, struct bch_sb_field_crypt *,
struct bch_key *);